Model recognition for estimation of direction of arrival using extended Kalman filter
K. Radhakrishnan, A. Unnikrishnan, Kalpana Balakrishnan · International Conference on Signal Processing · 2006
The purpose of this paper is to investigate the estimation of Direction of Arrival (DOA) of signal source impinging on a Uniform Linear Array (ULA). A method for estimating the delay of the signal received at two separated sensors in a system identification approach has been developed. The inaccurately known parameter (the time delay) forms a part of the state vector of EKF, which is used to recursively estimate the DOA. Simulation results demonstrate the feasibility of this method to estimate DOA both for narrow band and broadband signals, to a reasonable degree of convergence.